:root{--ink:#172033;--ink-soft:#33415c;--paper:#f6f8fc;--paper-2:#eef3fa;--white:#fff;--surface:#fff;--blue:#2563eb;--primary:#2563eb;--blue-dark:#1746ad;--blue-soft:#e8f0ff;--muted:#6f7d95;--line:#dfe6f1;--success:#16825c;--danger:#c34254;--shadow:0 22px 55px rgba(35,71,130,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}button,input,textarea,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{color:inherit}a{color:inherit;text-decoration:none}h1,h2,h3,p{margin-top:0}
.topbar{width:min(1240px,calc(100% - 40px));margin:0 auto;min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px;border-bottom:1px solid var(--line)}.brand{display:inline-flex;align-items:center;gap:11px}.brand-mark{width:40px;height:40px;display:grid;place-items:center;border-radius:12px;background:var(--blue);color:var(--white);font-weight:900;font-size:19px;box-shadow:0 8px 18px rgba(37,99,235,.22)}.brand-mark.small{width:32px;height:32px;border-radius:9px;font-size:14px}.brand-copy,.footer-brand>div{display:grid;gap:3px}.brand-copy b{font-size:14px;letter-spacing:-.02em}.brand-copy small,.footer-brand small{color:var(--muted);font-size:8px;letter-spacing:.15em}.top-actions{display:flex;align-items:center;gap:5px}.top-actions a,.top-actions button{border:0;background:transparent;cursor:pointer;padding:9px 12px;border-radius:10px;font-size:12px;font-weight:750;color:var(--muted)}.top-actions a:hover,.top-actions a.active{background:var(--blue-soft);color:var(--blue-dark)}.top-actions button{margin-left:4px;background:var(--blue);color:var(--white);padding-inline:16px;box-shadow:0 7px 15px rgba(37,99,235,.18)}.top-actions button:hover{background:var(--blue-dark)}
.hero-shell{width:min(1240px,calc(100% - 40px));margin:0 auto;min-height:620px;display:grid;grid-template-columns:minmax(0,1.08fr) minmax(360px,.92fr);gap:clamp(40px,7vw,100px);align-items:center;padding:62px 0 74px}.hero-copy{max-width:700px}.hero-kicker{display:flex;align-items:center;gap:11px;margin-bottom:24px}.hero-kicker span,.section-number{width:30px;height:30px;display:grid;place-items:center;border-radius:9px;background:var(--blue);color:var(--white);font-size:10px;font-weight:900}.hero-kicker p,.section-kicker{margin:0;color:var(--blue);font-size:10px;font-weight:900;letter-spacing:.14em}.hero-copy h1{max-width:680px;margin-bottom:24px;font-size:clamp(46px,5.7vw,78px);line-height:1.05;letter-spacing:-.065em}.hero-copy h1 em{color:var(--blue);font-style:normal}.hero-lead{max-width:590px;color:var(--muted);font-size:16px;line-height:1.8}.hero-notes{display:flex;flex-wrap:wrap;gap:8px;margin:25px 0 34px}.hero-notes span{padding:8px 11px;border:1px solid var(--line);border-radius:999px;color:var(--ink-soft);font-size:11px;background:var(--white)}.hero-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}.hero-metrics>div{padding:15px 0;display:grid;gap:4px}.hero-metrics>div+div{padding-left:18px;border-left:1px solid var(--line)}.hero-metrics small{color:var(--muted);font-size:10px}.hero-metrics b{font-size:18px;letter-spacing:-.03em}.hero-metrics span{color:#91a0b7;font-size:8px;letter-spacing:.1em}
.order-console{align-self:center;background:var(--white);border:1px solid var(--line);border-radius:22px;padding:25px;box-shadow:var(--shadow);position:relative;overflow:hidden}.order-console:after{content:"";position:absolute;right:-85px;top:-95px;width:200px;height:200px;border-radius:50%;border:42px solid rgba(37,99,235,.08);pointer-events:none}.console-head{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;margin-bottom:24px;position:relative;z-index:1}.console-head small{color:var(--muted);font-size:9px;letter-spacing:.15em}.console-head h2{margin:5px 0 0;font-size:28px;letter-spacing:-.045em}.status-light{padding:7px 9px;border-radius:999px;background:#e8f8f0;color:var(--success);font-size:9px;font-weight:900;letter-spacing:.1em}.order-app{position:relative;z-index:1}.console-loading{min-height:380px;display:grid;place-items:center;align-content:center;color:var(--muted)}.console-loading span{width:27px;height:27px;border-radius:50%;border:2px solid #d9e3f4;border-top-color:var(--blue);animation:spin .8s linear infinite}.console-loading p{margin:12px 0 0;font-size:12px}@keyframes spin{to{transform:rotate(360deg)}}
.checkout-shell{grid-template-columns:1fr!important}.checkout-shell[aria-hidden="true"],.price-primary[aria-hidden="true"],.price-reference[aria-hidden="true"]{display:none}
.field{display:grid;gap:8px;margin-bottom:18px}.field>label,.field>span{color:var(--ink-soft);font-size:10px;font-weight:800;letter-spacing:.06em}.plan-switch,.payment-switch{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.option-card{border:1px solid var(--line);background:var(--paper);color:var(--ink);border-radius:13px;padding:13px;text-align:left;cursor:pointer;transition:border-color .16s ease,background .16s ease,transform .16s ease}.option-card:hover{border-color:#9db8ee;transform:translateY(-1px)}.option-card.active{background:var(--blue-soft);color:var(--blue-dark);border-color:#8eb0f1}.option-card small{display:block;opacity:.72;font-size:9px;margin-bottom:6px}.option-card b{font-size:17px;letter-spacing:-.03em}.option-card span{display:block;margin-top:4px;color:var(--muted);font-size:10px}.input-shell{display:flex;align-items:center;min-height:50px;border:1px solid var(--line);border-radius:12px;background:var(--paper);overflow:hidden}.input-shell:focus-within{border-color:#8eb0f1;box-shadow:0 0 0 3px var(--blue-soft)}.input-shell>span{padding-left:14px;color:var(--blue);font-weight:900}.input-shell input{flex:1;min-width:0;border:0;outline:0;background:transparent;color:var(--ink);padding:0 13px 0 5px}.input-shell input::placeholder{color:#9aa8bc}.field-help{color:var(--muted);font-size:10px;line-height:1.6}.payment-info{margin:4px 0 18px;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--paper)}.payment-line{padding:13px;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;border-bottom:1px solid var(--line)}.payment-line:last-child{border-bottom:0}.payment-line span{color:var(--muted);font-size:10px}.payment-line b{text-align:right;font-size:14px}.destination-box{padding:13px;background:#f0f5ff}.destination-box small{display:block;margin-bottom:8px;color:var(--muted)}.destination-value{display:flex;gap:7px;align-items:stretch}.destination-value code{flex:1;min-width:0;padding:10px;border-radius:9px;background:var(--white);color:var(--ink-soft);overflow-wrap:anywhere;font-size:10px;line-height:1.5}.destination-value button{flex:0 0 auto;width:42px;border:0;border-radius:9px;background:var(--blue);color:var(--white);cursor:pointer;font-weight:900}.payment-unavailable{padding:13px;border-radius:11px;color:#9b3949;background:#fff0f2;font-size:11px;line-height:1.6}.checkbox-row{display:flex;align-items:flex-start;gap:9px;margin:2px 0 16px;color:var(--muted);font-size:10px;line-height:1.6}.checkbox-row input{margin-top:2px;accent-color:var(--blue)}.submit-button{width:100%;min-height:52px;border:0;border-radius:12px;background:var(--blue);color:var(--white);cursor:pointer;font-weight:900;box-shadow:0 8px 17px rgba(37,99,235,.2)}.submit-button:hover:not(:disabled){background:var(--blue-dark)}.submit-button:disabled{opacity:.42;cursor:not-allowed;box-shadow:none}.form-error{margin:-6px 0 13px;padding:10px 11px;border-radius:10px;color:#9b3949;background:#fff0f2;font-size:11px}.order-success{padding:10px 0 3px}.success-icon{width:52px;height:52px;display:grid;place-items:center;border-radius:14px;background:var(--blue-soft);color:var(--blue);font-size:23px;font-weight:900}.order-success h3{margin:19px 0 7px;font-size:28px;letter-spacing:-.045em}.order-success>p{color:var(--muted);line-height:1.7;font-size:12px}.order-code-box{margin:20px 0;padding:14px;border-radius:12px;background:var(--paper)}.order-code-box small{display:block;margin-bottom:6px;color:var(--muted)}.order-code-box b{font-size:18px;letter-spacing:.02em;overflow-wrap:anywhere}.success-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px}.success-actions button{min-height:46px;border-radius:11px;border:1px solid var(--line);background:var(--white);color:var(--ink);cursor:pointer}.success-actions button:first-child{background:var(--blue);color:var(--white);border-color:var(--blue);font-weight:900}
.process-section{background:var(--white);padding:78px max(20px,calc((100vw - 1240px)/2));display:grid;grid-template-columns:54px minmax(240px,.8fr) minmax(0,1.7fr);gap:28px}.section-copy h2,.lookup-intro h2{margin:12px 0 0;font-size:clamp(32px,3.8vw,52px);line-height:1.05;letter-spacing:-.055em}.process-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1px solid var(--ink)}.process-grid article{min-height:190px;padding:21px 18px 19px 0;border-bottom:1px solid var(--line)}.process-grid article:nth-child(even){padding-left:22px;border-left:1px solid var(--line)}.process-grid span{color:var(--blue);font-size:10px;font-weight:900}.process-grid h3{margin:28px 0 8px;font-size:18px}.process-grid p{margin:0;color:var(--muted);font-size:12px;line-height:1.7}.lookup-section{background:var(--blue);color:var(--white);padding:78px max(20px,calc((100vw - 1240px)/2));display:grid;grid-template-columns:minmax(280px,.75fr) minmax(0,1.25fr);gap:clamp(38px,7vw,100px);align-items:start}.section-number.inverse{background:rgba(255,255,255,.16);margin-bottom:27px}.lookup-intro .section-kicker{color:#c9d8ff}.lookup-intro>p:last-child{max-width:450px;margin-top:23px;color:#dce7ff;font-size:13px;line-height:1.75}.lookup-panel{padding:23px;border-radius:18px;background:var(--white);color:var(--ink);box-shadow:0 16px 36px rgba(8,36,104,.17)}.lookup-panel label{display:block;margin-bottom:9px;color:var(--muted);font-size:10px;font-weight:800}.lookup-row{display:grid;grid-template-columns:1fr auto;gap:9px}.lookup-row input{min-width:0;min-height:50px;padding:0 14px;border:1px solid var(--line);border-radius:11px;background:var(--paper);outline:0}.lookup-row input:focus{border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-soft)}.lookup-row button{min-width:88px;border:0;border-radius:11px;background:var(--blue);color:var(--white);cursor:pointer;font-weight:850}.lookup-row button:hover{background:var(--blue-dark)}.lookup-results{margin-top:16px}.lookup-empty{padding:23px;border:1px dashed #c9d7eb;border-radius:12px;color:var(--muted);text-align:center;font-size:11px}.lookup-card{padding:16px;border:1px solid var(--line);border-radius:13px;background:var(--paper)}.lookup-card+.lookup-card{margin-top:9px}.lookup-card-head{display:flex;align-items:center;justify-content:space-between;gap:13px}.lookup-card-head b{overflow-wrap:anywhere}.status-badge{padding:5px 8px;border-radius:999px;background:#edf1f7;color:var(--muted);font-size:9px;font-weight:900}.status-badge.completed{background:#e1f6ed;color:var(--success)}.lookup-meta{margin-top:14px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.lookup-meta span{display:grid;gap:3px}.lookup-meta small{color:var(--muted);font-size:9px}.lookup-meta b{font-size:12px;overflow-wrap:anywhere}.safety-section{display:grid;grid-template-columns:repeat(3,1fr);width:min(1240px,calc(100% - 40px));margin:0 auto;border-left:1px solid var(--line)}.safety-section>div{min-height:116px;padding:24px;display:grid;align-content:space-between;border-right:1px solid var(--line)}.safety-section span{color:var(--blue);font-size:9px;letter-spacing:.13em;font-weight:900}.safety-section b{font-size:14px}.site-footer{width:min(1240px,calc(100% - 40px));margin:0 auto;min-height:108px;display:grid;grid-template-columns:1fr 1.4fr auto;gap:20px;align-items:center;border-top:1px solid var(--line);color:var(--muted);font-size:11px}.footer-brand{display:flex;align-items:center;gap:9px;color:var(--ink)}.footer-links{display:flex;align-items:center;gap:12px}.footer-links button{border:0;background:transparent;cursor:pointer;color:inherit;padding:0}.footer-links a:hover,.footer-links button:hover{color:var(--blue)}.info-dialog{width:min(540px,calc(100% - 30px));border:0;border-radius:18px;padding:28px;color:var(--ink);background:var(--white);box-shadow:0 30px 80px rgba(14,34,70,.24)}.info-dialog::backdrop{background:rgba(13,31,67,.45);backdrop-filter:blur(4px)}.info-dialog h2{font-size:28px;letter-spacing:-.04em}.info-dialog p{color:var(--muted);line-height:1.75}.dialog-close{position:absolute;right:13px;top:11px;width:34px;height:34px;border:0;border-radius:9px;background:var(--paper-2);cursor:pointer;font-size:20px}.dialog-action{display:inline-flex;min-height:44px;padding:0 17px;align-items:center;border-radius:10px;background:var(--blue);color:var(--white);font-weight:800}.toast{position:fixed;left:50%;bottom:22px;transform:translate(-50%,20px);opacity:0;pointer-events:none;padding:10px 15px;border-radius:999px;background:var(--ink);color:var(--white);font-size:11px;z-index:100;transition:.18s ease}.toast.visible{opacity:1;transform:translate(-50%,0)}
@media(max-width:980px){.hero-shell{grid-template-columns:1fr;min-height:0;gap:43px}.order-console{width:min(620px,100%)}.process-section{grid-template-columns:45px 1fr}.process-grid{grid-column:2}.lookup-section{grid-template-columns:1fr}.site-footer{grid-template-columns:1fr;padding:27px 0}}
@media(max-width:640px){.topbar,.hero-shell,.safety-section,.site-footer{width:min(100% - 28px,1240px)}.topbar{min-height:68px}.brand-copy small{display:none}.top-actions a[href="#lookup"]{display:none}.top-actions a,.top-actions button{padding:8px;font-size:11px}.top-actions button{padding-inline:11px}.hero-shell{padding:43px 0 54px}.hero-copy h1{font-size:clamp(42px,13vw,62px)}.hero-lead{font-size:15px}.hero-metrics{grid-template-columns:1fr}.hero-metrics>div+div{padding-left:0;border-left:0;border-top:1px solid var(--line)}.order-console{padding:20px;border-radius:18px}.plan-switch,.payment-switch{grid-template-columns:1fr 1fr}.process-section{padding:57px 18px;grid-template-columns:1fr}.process-section>.section-number{margin-bottom:-8px}.process-grid{grid-column:1;grid-template-columns:1fr}.process-grid article:nth-child(even){padding-left:0;border-left:0}.lookup-section{padding:58px 18px}.lookup-panel{padding:17px}.lookup-row{grid-template-columns:1fr}.lookup-row button{min-height:47px}.lookup-meta{grid-template-columns:1fr}.safety-section{grid-template-columns:1fr;border-top:1px solid var(--line)}.safety-section>div{min-height:89px;border-bottom:1px solid var(--line)}.site-footer{gap:13px}.footer-links{flex-wrap:wrap}}

/* C 方案：居中聚焦卡片。信息顺序保持清晰，桌面与手机都围绕下单卡片展开。 */
.layout-centered .hero-shell{grid-template-columns:1fr;max-width:920px;min-height:0;gap:30px;padding-top:48px;padding-bottom:64px;text-align:center}
.layout-centered .hero-copy{max-width:820px;margin:0 auto}
.layout-centered .hero-kicker{justify-content:center;margin-bottom:18px}
.layout-centered .hero-copy h1{font-size:clamp(42px,6vw,70px);margin:0 0 18px}
.layout-centered .hero-lead{margin:0 auto;max-width:650px}
.layout-centered .hero-notes{justify-content:center;margin-bottom:26px}
.layout-centered .hero-metrics{max-width:680px;margin:0 auto;text-align:left}
.layout-centered .order-console{width:min(760px,100%);margin:0 auto;text-align:left}
.layout-centered .console-head{margin-bottom:20px}
.layout-centered .lookup-section{grid-template-columns:minmax(260px,.7fr) minmax(0,1.3fr)}
@media(max-width:980px){.layout-centered .hero-shell{gap:26px}.layout-centered .hero-metrics{max-width:760px}}
@media(max-width:640px){.layout-centered .hero-shell{padding-top:34px;padding-bottom:50px}.layout-centered .hero-copy h1{font-size:clamp(38px,12vw,56px)}.layout-centered .hero-metrics{text-align:left}.layout-centered .lookup-section{grid-template-columns:1fr}}